Spark plug

[Kerny]

I am running a stock 73' 460 and was wondering if I should run a standard plug or should I go for a bigger plug.
Thanks
Anthony

[Hallett19]

What do you mean by bigger ? I run Autolite Platinums in my BBF at the regular temp range. Unless you are running NOS, you dont need to change heat ranges. You will be just fine with the Autolites, they are great plugs and change them once a year to keep the boat in great tune.

[GofastRacer]

I run nothing but Autolites, if not available NGK's is just as good!..If the motor is stock, stick with the standard heat range!..

[waterslinger]

What them boys said. Autolite works great.